The American Civil Liberties Union issued a “travel alert” today informing anyone planning to travel to Texas in the near future to anticipate the possible violation of their constitutional rights when stopped by law enforcement.

The alert comes amid the passing of a Texas law known as SB4. The law gives a green light to police officers in the state to investigate a person’s immigration status during a routine traffic stop, leading to widespread racial profiling, baseless scrutiny, and illegal arrests of citizens and non-citizens alike presumed to be “foreign” based on how they look or sound. The travel alert applies to all travelers to Texas, including U.S. travelers from other states and U.S. citizens. In addition, this alert applies to all encounters with federal, state, county law enforcement including local police and sheriffs.